compounding

verb

1. (form-of, gerund, participle, present)present participle and gerund of compound

noun

1. An accumulation of compound interest.

   “the number of compoundings per year”

2. The act of mixing or combining substances to make a compound, such as a medicine

   “Arthur Pendennis, his son, was eight years old at the time of this event, so that it is no wonder that the latter, who left Bath and the surgery so young, should forget the existence of such a place almost entirely, and that his father’s hands had ever been dirtied by the compounding of odious pills, or the preparation of filthy plasters”

3. The use of steam more than once in a steam engine or turbine, in additional low-pressure cylinders etc.

   “Superheating, first introduced with the "Abs", stopped further development in compounding, in New Zealand as elsewhere, and the "Abs" succeeded in dealing with the growing traffic unaided for more than a decade.”